<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/86447>86447</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            `performance-move-const-arg` not reported with `emplace_back()` and such
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          firewave
      </td>
    </tr>
</table>

<pre>
    ```cpp
#include <string>
#include <vector>

class C
{
public:
    C(int i, const std::string& s);
};

int main()
{
    std::vector<C> v;

    {
 std::string s = "str";
        
        C c(0, std::move(s));
 }
    

    {
        std::string s = "str";
        
 v.push_back(C(0, std::move(s)));
    }
    
    {
 std::string s = "str";
        
        v.emplace_back(0, std::move(s)); // no warning
 }
}
```

```
<source>:17:16: warning: passing result of std::move() as a const reference argument; no move will actually happen [performance-move-const-arg]
   17 |         C c(0, std::move(s));
 |                ^~~~~~~~~~ ~
<source>:24:26: warning: passing result of std::move() as a const reference argument; no move will actually happen [performance-move-const-arg]
   24 |         v.push_back(C(0, std::move(s)));
      |                          ^~~~~~~~~~ ~
```
https://godbolt.org/z/vqM1orqdP
</pre>
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